Alert archive / Texas / Severe Thunderstorm Warnings in 2010
Severe Thunderstorm Warning 211, NWS Shreveport, LA
NWS Shreveport, LA issued this severe thunderstorm warning at Aug 6, 2010, 4:45 PM CDT for 4 counties in Texas. It was in force for 45 min. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Aug 6, 2010, 4:45 PM CDT (21:45 UTC)
- Expired
- Aug 6, 2010, 5:30 PM CDT
- In force
- 45 min
- Issued by
- NWS Shreveport, LA
- Area
- Storm-based polygon
Counties Gregg County, TX, Harrison County, TX, Rusk County, TX, Upshur County, TX
The radar
The Shreveport radar (KSHV), 83 km from the middle of the area, began a volume at 21:47 UTC, the scan nearest the moment this went out.
Open the radar archive at this moment
The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.
The nearest sounding before it
Lake Charles Mun, LA (KLCH), launched 12:00Z, 9.8 hours before the alert went out and 299 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.
- Mixed-layer CAPE
- 2157 J/kg
- Mixed-layer CIN
- -9 J/kg
- Mixed-layer LCL
- 777 m above ground
- 0-6 km bulk shear
- 13 kt
- 0-1 km storm-relative helicity
- -40 m²/s²
- 0-3 km storm-relative helicity
- 14 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
What forecasters said that day
The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Shreveport, LA wrote its last area forecast discussion before this severe thunderstorm warning went out at Aug 6, 3:25 PM CDT, 1 hour 20 minutes earlier.
Area forecast discussion, Aug 6, 3:25 PM CDT, 1 hour 20 minutes before
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</html>Hazardous weather outlook, Aug 6, 11:25 AM CDT, 5 hours 20 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE SHREVEPORT LA 1125 AM CDT FRI AUG 6 2010 ARZ050-051-059>061-070>073-LAZ001>006-010>014-017>022-OKZ077- TXZ096-097-108>112-124>126-136>138-149>153-165>167-071100- SEVIER-HOWARD-LITTLE RIVER-HEMPSTEAD-NEVADA-MILLER-LAFAYETTE- COLUMBIA-UNION AR-CADDO-BOSSIER-WEBSTER-CLAIBORNE-LINCOLN- UNION LA-DE SOTO-RED RIVER-BIENVILLE-JACKSON-OUACHITA-SABINE LA- NATCHITOCHES-WINN-GRANT-CALDWELL-LA SALLE-MCCURTAIN-BOWIE- FRANKLIN-TITUS-CAMP-MORRIS-CASS-WOOD-UPSHUR-MARION-SMITH-GREGG- HARRISON-CHEROKEE-RUSK-PANOLA-NACOGDOCHES-SHELBY-ANGELINA- SAN AUGUSTINE-SABINE TX- 1125 AM CDT FRI AUG 6 2010 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF SOUTH CENTRAL ARKANSAS...SOUTHWEST ARKANSAS...NORTH CENTRAL LOUISIANA... NORTHWEST LOUISIANA...SOUTHEAST OKLAHOMA...EAST TEXAS AND NORTHEAST TEXAS. .DAY ONE...THIS AFTERNOON AND TONIGHT... A STRONG UPPER LEVEL RIDGE OF HIGH PRESSURE REMAINS IN CONTROL OF THE WEATHER ACROSS THE SOUTHERN PLAINS AND LOWER MISSISSIPPI VALLEY REGION. ALTHOUGH HIGH TEMPERATURES THIS AFTERNOON ARE EXPECTED TO BE SLIGHTLY COOLER THAN THURSDAY...THEY WILL STILL REACH INTO THE MID AND UPPER NINETIES. THESE TEMPERATURES...WHEN COMBINED WITH A VERY HUMID AIRMASS...WILL AGAIN RESULT IN HEAT INDICES OF 105 TO 108 DEGREES. THUS...A HEAT ADVISORY REMAINS IN EFFECT FOR THE AREA THROUGH THIS EVENING. AREA RESIDENTS ARE URGED TO DRINK PLENTY OF WATER...STAY IN AN AIR CONDITIONED ROOM AND OUT OF THE SUN...AND CHECK UP ON RELATIVES...NEIGHBORS...AND PETS. AS THE RIDGE CONTINUES TO DRIFT WESTWARD TODAY...SHOWERS AND THUNDERSTORMS WILL BE POSSIBLE AGAIN. A WEAK FRONT WILL SLOWLY SINK INTO THE REGION FROM THE NORTH...AND WILL LIKELY SERVE AS A FOCUS FOR SOME OF THESE SHOWERS AND THUNDERSTORMS. ALTHOUGH A FEW ISOLATED DAMAGING WIND GUSTS CANNOT BE RULED OUT...NO WIDESPREAD SEVERE WEATHER IS EXPECTED AT THIS TIME. .DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY... AFTERNOON SCATTERED SHOWERS AND THUNDERSTORMS WILL BE POSSIBLE THROUGH THE WEEKEND AND INTO THE UPCOMING WORK WEEK...AS THE UPPER LEVEL RIDGE BUILDS NORTHEAST INTO OKLAHOMA AND ARKANSAS. GIVEN THAT TEMPERATURES WILL REACH INTO THE MID TO UPPER 90S MOST DAYS... INSTABILITY WILL BE SUCH THAT AN ISOLATED DAMAGING WIND GUST CANNOT BE RULED OUT. HOWEVER...NO WIDESPREAD SEVERE WEATHER IS EXPECTED AT THIS TIME. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION SHOULD NOT BE NEEDED THROUGH TONIGHT. ELEVEN
In the hours before
Local storm report, Aug 6, 2:27 PM CDT, 2 hours 18 minutes before
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</html>Special weather statement, Aug 6, 3:34 PM CDT, 1 hour 11 minutes before
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</html>Local storm report, Aug 6, 4:00 PM CDT, 45 minutes before
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</html>Local storm report, Aug 6, 4:30 PM CDT, 15 minutes before
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</html>Local storm report, Aug 6, 4:32 PM CDT, 13 minutes before
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</html>Local storm report, Aug 6, 4:35 PM CDT, 10 minutes before
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</html>The office that day
Everything else NWS Shreveport, LA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 6, 1:36 PM CDT | Severe Thunderstorm Warning | SHV | Bowie, Red River | 39 min |
| Aug 6, 2:36 PM CDT | Severe Thunderstorm Warning | SHV | Wood | 39 min |
| Aug 6, 3:20 PM CDT | Severe Thunderstorm Warning | SHV | Camp, Upshur, Wood | 40 min |
| Aug 6, 3:55 PM CDT | Severe Thunderstorm Warning | SHV | Bowie | 50 min |
| Aug 6, 4:03 PM CDT | Severe Thunderstorm Warning | SHV | Gregg, Smith, Upshur | 42 min |
| Aug 6, 5:24 PM CDT | Severe Thunderstorm Warning | SHV | Gregg, Harrison, Panola, Rusk | 31 min |
| Aug 6, 7:10 AM CDT | Areal Flood Advisory | SHV | Ouachita, Union | 50 min |
| Aug 6, 9:28 AM CDT | Areal Flood Advisory | SHV | Caldwell, Jackson, Lincoln, Ouachita, Union, Winn | 62 min |
| Aug 6, 2:17 PM CDT | Severe Thunderstorm Warning | SHV | Bossier, Caddo | 43 min |
Nearby
Severe Thunderstorm Warnings in Texas, 2010Every severe thunderstorm warning in 2010
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.